Hansal, A. (2011). Oracle Siebel CRM 8 developer's handbook: A practical guide to configuring, automating, and extending Siebel CRM applications. Packt Enterprise.
Čikaški stil citiranja (17. izdanje)Hansal, Alexander. Oracle Siebel CRM 8 Developer's Handbook: A Practical Guide to Configuring, Automating, and Extending Siebel CRM Applications. Birmingham, U.K.: Packt Enterprise, 2011.
MLA način citiranja (9. izdanje)Hansal, Alexander. Oracle Siebel CRM 8 Developer's Handbook: A Practical Guide to Configuring, Automating, and Extending Siebel CRM Applications. Packt Enterprise, 2011.
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